content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * -----------------------------
   * IntervalBarRendererTests.java
   * -----------------------------
   * (C) Copyright 2003-2009, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 25-Mar-2003 : Version 1 (DG);
   * 23-Apr-2008 : Added testPublicCloneable (DG);
   * 16-May-2009 : Added testFindRangeBounds() (DG);
   *
   */
  
  package org.jfree.chart.renderer.category;
  
  import org.jfree.chart.JFreeChart;
  import org.jfree.chart.axis.CategoryAxis;
  import org.jfree.chart.axis.NumberAxis;
  import org.jfree.chart.plot.CategoryPlot;
  import org.jfree.chart.util.PublicCloneable;
  import org.jfree.data.Range;
  import org.jfree.data.category.DefaultIntervalCategoryDataset;
  import org.junit.Test;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutput;
  import java.io.ObjectOutputStream;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotSame;
  import static org.junit.Assert.assertNull;
  import static org.junit.Assert.assertSame;
  import static org.junit.Assert.assertTrue;
  
  /**
   * Tests for the {@link IntervalBarRenderer} class.
   */
  public class IntervalBarRendererTest  {
  
  
  
  
  
      /**
       * Problem that the equals() method distinguishes all fields.
       */
      @Test
      public void testEquals() {
          IntervalBarRenderer r1 = new IntervalBarRenderer();
          IntervalBarRenderer r2 = new IntervalBarRenderer();
          assertEquals(r1, r2);
  
          // the renderer should not be equal to a BarRenderer
          BarRenderer br = new BarRenderer();
          assertFalse(r1.equals(br));
      }
  
      /**
       * Two objects that are equal are required to return the same hashCode.
       */
      @Test
      public void testHashcode() {
          IntervalBarRenderer r1 = new IntervalBarRenderer();
          IntervalBarRenderer r2 = new IntervalBarRenderer();
          assertEquals(r1, r2);
          int h1 = r1.hashCode();
          int h2 = r2.hashCode();
          assertEquals(h1, h2);
      }
  
      /**
       * Confirm that cloning works.
       */
      @Test
      public void testCloning() throws CloneNotSupportedException {
          IntervalBarRenderer r1 = new IntervalBarRenderer();
          IntervalBarRenderer r2 = (IntervalBarRenderer) r1.clone();
          assertNotSame(r1, r2);
          assertSame(r1.getClass(), r2.getClass());
          assertEquals(r1, r2);
      }
  
      /**
       * Check that this class implements PublicCloneable.
       */
      @Test
      public void testPublicCloneable() {
          IntervalBarRenderer r1 = new IntervalBarRenderer();
          assertTrue(r1 instanceof PublicCloneable);
      }
  
      /**
       * Serialize an instance, restore it, and check for equality.
       */
      @Test
      public void testSerialization() throws IOException, ClassNotFoundException {
          IntervalBarRenderer r1 = new IntervalBarRenderer();
  
              ByteArrayOutputStream buffer = new ByteArrayOutputStream();
              ObjectOutput out = new ObjectOutputStream(buffer);
              out.writeObject(r1);
              out.close();
              ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(
                      buffer.toByteArray()));
          IntervalBarRenderer r2 = (IntervalBarRenderer) in.readObject();
              in.close();
  
          assertEquals(r1, r2);
      }
  
      /**
       * Draws the chart with a <code>null</code> info object to make sure that
       * no exceptions are thrown (particularly by code in the renderer).
       */
      @Test
      public void testDrawWithNullInfo() {
              double[][] starts = new double[][] {{0.1, 0.2, 0.3},
                      {0.3, 0.4, 0.5}};
              double[][] ends = new double[][] {{0.5, 0.6, 0.7}, {0.7, 0.8, 0.9}};
              DefaultIntervalCategoryDataset dataset
                      = new DefaultIntervalCategoryDataset(starts, ends);
              IntervalBarRenderer renderer = new IntervalBarRenderer();
              CategoryPlot plot = new CategoryPlot(dataset,
                      new CategoryAxis("Category"), new NumberAxis("Value"),
                      renderer);
              JFreeChart chart = new JFreeChart(plot);
              /* BufferedImage image = */ chart.createBufferedImage(300, 200,
                      null);
  
      }
  
      /**
       * Some checks for the findRangeBounds() method.
       */
      @Test
      public void testFindRangeBounds() {
          IntervalBarRenderer r = new IntervalBarRenderer();
          assertNull(r.findRangeBounds(null));
  
          // an empty dataset should return a null range
          DefaultIntervalCategoryDataset dataset
                  = new DefaultIntervalCategoryDataset(new double[0][0],
                  new double[0][0]);
          assertNull(r.findRangeBounds(dataset));
  
          double[][] starts = new double[][] {{0.1, 0.2, 0.3}, {0.3, 0.4, 0.5}};
          double[][] ends = new double[][] {{0.5, 0.6, 0.7}, {0.7, 0.8, 0.9}};
          dataset = new DefaultIntervalCategoryDataset(starts, ends);
          assertEquals(new Range(0.0, 0.9), r.findRangeBounds(dataset));
          r.setIncludeBaseInRange(false);
          assertEquals(new Range(0.1, 0.9), r.findRangeBounds(dataset));
          r.setIncludeBaseInRange(true);
  
          r.setSeriesVisible(1, Boolean.FALSE);
          assertEquals(new Range(0.0, 0.7), r.findRangeBounds(dataset));
      }
  
  }
  